GB1281288A - Magnetic foucault current coupling - Google Patents

Magnetic foucault current coupling

Info

Publication number
GB1281288A
GB1281288A GB2684870A GB2684870A GB1281288A GB 1281288 A GB1281288 A GB 1281288A GB 2684870 A GB2684870 A GB 2684870A GB 2684870 A GB2684870 A GB 2684870A GB 1281288 A GB1281288 A GB 1281288A
Authority
GB
United Kingdom
Prior art keywords
ring
rotors
axially
magnet
june
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2684870A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NERVUS PARIS
Original Assignee
NERVUS PARIS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR6918900A external-priority patent/FR2045150A5/fr
Priority claimed from FR7017757A external-priority patent/FR2087350A6/fr
Application filed by NERVUS PARIS filed Critical NERVUS PARIS
Publication of GB1281288A publication Critical patent/GB1281288A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
    • H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
    • H02K49/046—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with an axial airgap

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

1281288 Eddy current couplings NERVUSPARIS and F J BALAGNY 3 June 1970 [9 June 1969 15 May 1970] 26848/70 Heading H2A A magnetic Foucault current coupling comprises coaxially mounted driving and driven rotors 1, 2 having respectively at least one ferrite permanent magnet 14 and an electrically conductive disc 15 facing and spaced by a planar air gap 16 from the driving rotor magnet which during its rotation induces Foucault currents in the disc, and adjustment means to vary the air gap length. In the embodiment shown, the two rotors are in respective inner and outer relatively slidable fluid-tight casings 3, 7 carrying a driving electric, e.g. asychronous motor 5 and having mounting feet 9; the means comprise a rotatable control ring 17 axially fast between an outer casing shoulder 21 and a stop ring 22 and having a helical groove 18 engaged by a guide finger 20 fast with the inner casing 3 whereby the latter is axially adjusted by rotation of the ring 17 by an operating handle 24 having a locking threaded rod 25. A groove 26 in the ring 17 is to permit remote control via a cable. Five series of cooling fins 29 ... 33 are provided to dissipate generated heat, and the magnet 14 is either a single toroid or a plurality of separate magnets. In the other embodiment, Figs. 2 and 3, both rotors are in a single casing containing a cooling oil bath (73), and the driven rotor (42) is axially slidable via a rack and pinion (59, 60) by an exterior handle (69).
GB2684870A 1969-06-09 1970-06-03 Magnetic foucault current coupling Expired GB1281288A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR6918900A FR2045150A5 (en) 1969-06-09 1969-06-09
FR7017757A FR2087350A6 (en) 1970-05-15 1970-05-15

Publications (1)

Publication Number Publication Date
GB1281288A true GB1281288A (en) 1972-07-12

Family

ID=26215092

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2684870A Expired GB1281288A (en) 1969-06-09 1970-06-03 Magnetic foucault current coupling

Country Status (5)

Country Link
BE (1) BE751556A (en)
DE (1) DE2027315A1 (en)
GB (1) GB1281288A (en)
LU (1) LU61070A1 (en)
NL (1) NL7008109A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3226706A1 (en) * 1982-07-16 1984-01-19 Thyssen Edelstahlwerke AG, 4000 Düsseldorf Permanent-magnet energised coupling
GB2140978A (en) * 1983-05-26 1984-12-05 Myano Seisakusho Kk Eddy current retarder for emergency escape device
BE1018032A3 (en) * 2008-03-04 2010-04-06 Cloet Arthur Fall protection system for rock or wall climber, uses rotating permanent magnets and eddy current recordable plate for providing controlled braking in cable drum
WO2016086046A3 (en) * 2014-11-26 2016-08-04 Magnadrive Corporation Apparatus, systems, and methods for cooling rotating couplings and drives

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004051577B4 (en) * 2004-10-22 2017-08-31 Intrasys Gmbh Innovative Transport-Systeme Changeable switchable eddy current brake
DE102005041973A1 (en) * 2005-09-03 2007-09-13 Werth, Vladimir, Dipl.-Ing. Permanent magnetic coupler for use in multi-function machine, has chamber adjustable in axial direction, where rotary torque transfer occurs from shaft to belt pulley without disassembly of coupler
DE102013211051A1 (en) * 2013-06-13 2014-12-18 Siemens Aktiengesellschaft Eddy current brake for braking a rotating element, in particular a shaft, with at least one rotor disk and arrangement with such an eddy current brake

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3226706A1 (en) * 1982-07-16 1984-01-19 Thyssen Edelstahlwerke AG, 4000 Düsseldorf Permanent-magnet energised coupling
GB2140978A (en) * 1983-05-26 1984-12-05 Myano Seisakusho Kk Eddy current retarder for emergency escape device
BE1018032A3 (en) * 2008-03-04 2010-04-06 Cloet Arthur Fall protection system for rock or wall climber, uses rotating permanent magnets and eddy current recordable plate for providing controlled braking in cable drum
WO2016086046A3 (en) * 2014-11-26 2016-08-04 Magnadrive Corporation Apparatus, systems, and methods for cooling rotating couplings and drives

Also Published As

Publication number Publication date
BE751556A (en) 1970-12-07
DE2027315A1 (en) 1970-12-17
NL7008109A (en) 1970-12-11
LU61070A1 (en) 1971-07-02

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee